I searched the Netscape site looking for a spec like Microsoft's CDF but came up empty. For now it appears the only way to
push content at NetCaster is with a Marimba transmitter.

On the other hand, according to news.com, 15 software companies, including
Freeloader, Wayfarer and Datachannel, will be providing servers that can talk to NetCaster, so it doesn't appear to be a lock-in for
Marimba.